title: HLA class II associations in juvenile Graves' disease: indication of a strong protective role of the DRB1*0701,DQA1*0201 haplotype.
abstract: Previous studies have shown that HLA-DRB1*0301 and DQA1*0501 are associated with susceptibility to Graves' disease. Ninety Danish patients with early onset of Graves' disease and 102-192 controls were analyzed for HLA-DR and -DQ to investigate if the same associations exist in the juvenile form of Graves' disease. Both DRB1*0301 and DQA1*0501 were highly significantly increased in the patients with relative risks of 8.0 and 4.6, which are higher than those seen in adults. Stratification showed that DRB1*0301 is more strongly associated than DQA1*0501. Surprisingly, the DRB1*0701,DQA1*0201 haplotype was completely absent from this group of patients, indicating a strong protective role of this haplotype in juvenile Graves' disease.
authors.affiliation: Department of Paediatrics, Glostrup University Hospital, Copenhagen, Denmark.
authors.forename: L
authors.initials: L
authors.lastname: Lavard
authors.forename: H O
authors.initials: HO
authors.lastname: Madsen
authors.forename: H
authors.initials: H
authors.lastname: Perrild
authors.forename: B B
authors.initials: BB
authors.lastname: Jacobsen
authors.forename: A
authors.initials: A
authors.lastname: Svejgaard
mesh_terms: D000293:Adolescent; D017668:Age of Onset; D002648:Child; D002675:Child, Preschool; D005260:Female; D005802:Genes, MHC Class II; D006111:Graves Disease / Q000235:genetics* / Q000276:immunology; D006683:HLA-DQ Antigens / Q000145:classification / Q000235:genetics*; D059848:HLA-DQ alpha-Chains; D006684:HLA-DR Antigens / Q000145:classification / Q000235:genetics*; D059811:HLA-DRB1 Chains; D006239:Haplotypes; D006801:Humans; D007223:Infant; D008297:Male
chemical_list: D006683:HLA-DQ Antigens; D059848:HLA-DQ alpha-Chains; C069050:HLA-DQA1 antigen; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains; C553502:HLA-DRB1*03:01 antigen